High-DPI Client-Side PDF Rasterizer

Convert PDF vector layers, form fields, and annotations into flat 300 DPI images locally. Prevent layer recovery and leakages.

Defensible Evidentiary Formatting

Flatten & Rasterize PDF to 300 DPI — Lock Forms, Signatures & Layers

Convert vector layers, form fields, and dynamic annotations into static, tamper-proof 300 DPI print-ready pages.

AcroForm Flattening

Locks editable text inputs, checkboxes, and signatures into permanent page content.

300 DPI Print Resolution

Maintains razor-sharp typographical clarity suited for legal archiving and commercial printing.

Tamper-Proof Output

Prevents counter-parties or subsequent viewers from altering form values or signatures.

Why Dynamic Form Fields and Signatures Pose Legal Risks

Interactive PDF forms (AcroForms and XFA forms) and digital annotation signatures remain editable in many PDF viewers. Counter-parties can alter numbers in contract fields, adjust payment terms, or toggle checkboxes even after an agreement has been executed. Furthermore, dynamic vector annotations render unpredictably across mobile devices and legacy enterprise document viewers.

Rasterizing and flattening a PDF renders every page down to an immutable, high-resolution bitmap. All annotations, dynamic fields, stamps, and signatures are permanently fused into the page imagery, making retroactive alteration impossible.

300 DPI High-Fidelity Canvas Rendering

Low-resolution rasterization (72 or 150 DPI) causes blurry text, jagged signatures, and unreadable small print. PrintSign utilizes an internal canvas renderer calibrated to 300 Dots Per Inch (DPI) — the gold standard for commercial printing and court filings.

Every character, line art vector, and signature stroke is rendered with crisp optical fidelity, producing documents that appear identical on paper and high-density screens while completely stripping dynamic scripting and editable form vulnerabilities.

  • Permanent signature freezing: Electronic signatures cannot be separated or lifted from underlying pages.
  • AcroForm script stripping: Eliminates embedded JavaScript, auto-fill actions, and external URL hooks.
  • Strict courtroom compliance: Meets court submission requirements for non-interactive document exhibits.
  • Local Web Worker execution: Rasterization processes run smoothly in background threads without freezing UI.

Defeating Scripting Exploits & Malicious PDF Macros

Advanced persistent threats (APTs) and malware campaigns frequently weaponize PDF format extensions: embedded launch actions, malicious JavaScript routines, and weaponized font parsers. By rasterizing untrusted PDF files into pure bitmap imagery, PrintSign completely neutralizes all active executable vectors.

The resulting document contains solely benign pixel data wrapped in standard PDF image envelopes, enabling safe distribution to external clients, secure banking networks, and government firewalls.

Frequently Asked Questions

What is the difference between flattening and rasterizing?

Flattening merges annotations and form fields into the base page layer while keeping vector text. Rasterizing converts the entire page into a high-resolution 300 DPI image, making text selection and editing completely impossible.

Will my rasterized document still look sharp when printed on paper?

Yes. PrintSign renders at 300 DPI (Dots Per Inch), ensuring standard commercial printing sharpness with clean text and crisp lines.